The survival time after intestinal diversion can range from long-term survival, such as 20-50 years, to death in a short period of time, such as 3-5 months, depending on the anatomical location of the diversion and the reason for the diversion. If a patient has a colostomy for a benign lesion, he or she can survive for a long time or even reach the same life expectancy as an ordinary person if he or she takes good care of himself or herself and pays attention to life and diet after surgery. If a small intestine fistula is done, but the location is high, a large amount of intestinal fluid will be lost, and if the fistula is closed within a few months with active nutritional support, the impact on life expectancy is not significant. In case of permanent fistula, the patient will die due to gradual physical failure. If the tumor is advanced and it is not possible to remove the tumor, and it is difficult to do chemotherapy, the fistula can only play the role of ventilation and a small amount of defecation, the survival period will not be too long, maybe just a few months. Therefore, the survival time of rerouting varies from person to person and from condition to condition, so you can consult with your attending physician about it.